L1, L2, L3 Layer Protocols — The Foundation of Networking Explained Simply Ever wondered how data travels from one device to another — flawlessly, every second? That’s where the magic of Layer 1, Layer 2, and Layer 3 protocols comes in. 📡 Layer 1 (Physical Layer) – Deals with cables, signals, and hardware. ➡️ Protocols: Ethernet, DSL, SONET, USB 🔗 Layer 2 (Data Link Layer) – Ensures data is error-free and properly framed for delivery. ➡️ Protocols: ARP, PPP, Frame Relay, VLAN, STP 🌍 Layer 3 (

Prashant Kumar on Instagram: "🌐 Layers & Network Protocols Simplified! ⚙️💻 Ever wondered how your data travels from one device to another? 🤔 In this short video, we break down the OSI Model and the key Network Protocols that make the internet work — from Ethernet to TCP/IP, and DNS to HTTPS. 🚀 📘 What You’ll Learn: 🔹 Layer 2 – Data Link (Ethernet, VLAN, PPP) 🔹 Layer 3 – Network (IPv4, OSPF, ICMP) 🔹 Layer 4 – Transport (TCP, UDP) 🔹 Layer 5 – Session (SSL, TLS, SIP) 🔹 Layer 7 – Applicatio